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21# 135° Black Oxide Jobber Drill Bit (12 pack) Triumph Twist Drill About This Item: Get the Triumph Twist Drill 21# 135° Black Oxide Jobber Drill Bit pack for high-speed precision drilling. This 12-pack set is ideal for a variety of materials, from iron to tough alloys, offering exceptional performance and durability in your drilling tasks. Specifications: Part Number: 12421 Size: #21 Decimal Equivalent: .1590 Flute Length: 2-1/8" Overall Length: 3-1/4" Features: Point: 135° Split Point Material: Premium Grade High Speed Steel Coating/Finish: Black Oxide Other: Heavy-Duty Construction For use in: Iron, Cast Steel, Low and Medium Carbon Steel, High Alloy Steel, Stainless and PH Tough, Medium and High-Tensile Strength Alloys About this Manufacturer: Triumph Twist Drill has a legacy of over 60 years in producing top-quality drills, like the 21# 135° Black Oxide Jobber Drill Bit pack. Situated in a state-of-the-art facility in Chisholm, MN, Triumph Twist Drill utilizes advanced machinery to create high-performance tools that meet your drilling needs effectively.
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🇺🇸 Ship from USA · On Agora since 2025
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